Shock-absorber wheel



s. F. DE CASTRO IZNAGA 1,707,256

SHOCK ABSORBER WHEEL Filed March 9, 1926 April 2, 1929.

4 Sheets-Sheet l W7.. 1f 7j lmms/wwe. @m fha.

April 2, 1929 s. F. DE CASTRO lzNAGA 1,707,256

SHOCK ABSORBER WHEEL Filed March 9, 1926 4 sheets-sheet 2 April 2 1929- s. F. DE: CASTRO` lzNAGA 1,707,256

' SHOCK ABSOHBER WHEEL Filed March 9, 192s 4 Sheets-sheet 3 l N VEN TOR.

April 2, 1929- s. F. DE CASTRO IZNAGA 1,707,256

SHOCK ABSORBER WHEEL Filed March 9, 1926 4 Sheets-Sheet 4 INVENTUR.

Patented Apr. 2, 1929.

- UNITED STATES SERGIO rausrirmna casan@ E' ruimen, er' AND encamina YzNAelr Y Ruiz Hams YzNAem; nEcEAsED;

iraniana, cura; maar acharne y Pneus er1-"sam sneer@ Fairs'rmn E` casema a f sHocK-lriasoannn WHEEL.

Applicatian filed March 9,

My invention relates to iinprevements in wheels" for vehicles, specially in Wheels with- 'out spokes `described and claimed in my American Patent No. 1,566,467,` dated Dec. 22. 1925;' and the objects or" said` improvements are, first, to provide.` means toapply .the wheelte a car withelit4 interfering with the vehoch-aheorher device; second,A to provide irie'ans to convey the motion from a turning shaft to thewlieel; third, to afford facilities fer applying at will the motien either to the center of the wheel in the common way or to the rim of the Vwheel through proper gear ing; fourth, to'aiferd vfacilities to allow the wheel to turn loosely; iifth, to provide a brake for checking the rolling of the wheel when needed; andsixth, to provide a proper cover to protect the inside o'l" the wheel against dust. 4 c

`I. attain these objects by the mechanism illustrated in the accompanying drawing in which-f c Fi 1 is a vertical section of the wheel and the stand .seen from the car on the line 1----1.i n Fig'. 5; Fig.2 is a vertical sectionof tlieivheel' and the stand on the line 2`2in Fig. 6; Fighe is a vertical section of the wheelfand the stand, seen from the car, on the line 3-3 in Fig. 6;' Figii is" vertical section of the wheel without the stand, on the linee-5 inFig. l; Fig. 5 is a vertical seetion oi the wheel and the stand on the line `lie-5 in Fig; 1; Fig. 6 is a vertieal section of" the wheelA and the stand on the line 6 6 in Fig. 1; l4`ig7 is a horizontal section of the wheel and the stand on the line 7--7 in Fig. l; Fig; 8 is a horizontal section ef the wheel and the stand on the line 8`-8 in Fig. 1": Fig. 9 a reduced View ofthewheel,` seen trom the car,` as it appears after the removal of a portion the hoard that closes the outlet ofthe protecting cover; and Fig. 10 is a schematic view of the gearing that cour-'eye the motion from a turning shaft to the rim of the wlheel.

c Similar numerals refer to similar parts throughout the c several views.

In the drawings 1 is therim of a wheel, 2 and 3 are twoinwardly enten-ding flanges integral with the riml. 5 and 6 are two short outward flanges integral,` too, with the trim l and adapted to receive and hold a pnew 192e) c serial no; 93,437.

matie or a Amassive `rubber tire in the courinon way. 71's a flat disc whic'hmay be integral with the flange 5i and serves to close the outer side of the wheel` There is groove cutl all" arcund the middle cfu the inner vperiphery of the rim 1 adapted to receive a cron/'ii ol" gearing teeth 8, which divided into a number of sectionsr` 9, 10, 11, 12. 13, maria;` To facilitate the Setting in pare @if the teotlied crown 8 inte the groeve the cutsl between the ends ef sections 11 and 12, 12 and 13, 13 and 1114, 14 and 9 are radial, while the cuts between the ends of sections E) and 10, and 10 and" 11 areparallel to each other to allow the settingin place of sectien 10 aitertlie other sections are set.

These sections 9, 10, 11, 12, 13, and lll are secured iii place by any suitable means not shown in the drawings. t c

A` wide groove 15 is cut l all around the ini-ier face of the inwardly extending flange 2l, and a similar groove 16 is cut all Varound i the: inner face of the opposite flange B. t

rfhe disc 7 is providedlwi'th a protruding cylinder' 17 occupying its center which` is also the center" of the wheel; The" inner Side o1 the disc `7 has aslightly conical cencavity `extending into the protruding `cylinder 17 and adapted to receive the Slightly conical end of an advancing and retracting aide, both the concavity and the end of the axle beingstriated or toothed to form a clutch` c 18"is a stand which serves as framewerl for the gearing. A large cut 19 `divides the lower portion of' said'stand 18 into two halves 106 and 107. `A mortise 20 passes through the upper portion of the stand 18 and its outer hall 106; and a shorter but wider mortise 21 passes only through the upper prtioil of said stand 18.

The outer faces of both halves 106 and 107 of the lower portion of the stand 18 are rah beted into two recesses 22 and 23. l

A bore 24;- 25 passes through the stand 18 near the two thirds ef its height; the portion 24 being of larger diameter than the por tion 25..

Another here 26 passes through both halves 106 and 107 `of the stand 18 near one third of `its height;` and a smaller bore `27 passes through the lower A short cylinder 28, Whose inner diameter fis'the saine as the diameterof the portion 25,

can turn within the, bore 24, and it is provided with a number of internal teeth 29 and and has an external groove 31.

Agsl-ifdablefaxle 32l has'two grooves cut all aroundit, onejfwide 33and the. other one narrow 34; and itsend is provided with a yslightly conical head 35 which can enter into the concavity of the cylinder 17- when the axle 32 is slid outwardly acting then as a Y clutch. Said head 35 is provided with proper grooves, not shown in the drawings, adapted to receive and .engage the teeth 29 vand 30 'cross-section, which enters intoV a inortise 39 kof similar' c'r'os'sfsection inade in the end'of a rotatable shaft 440. n

' A' spur-gear 41, ivit-hinfthe inortise 20, is

` slidably Iriounted ontlieV cylinder 30, and as f thecential bore 'of .saidspur-gear 41 "is provided with a projecting edge Which enters Athrough the' groovel 31k of the cylinder 30, i when' this latter'turns, the spurggear 41 'turns The spur-gear 41 lmeshes with a 4toothed piniori42,.\vhicl iis Within the niortise 20,*too, and'slidably mounted o'nan axle 43 provided t Vwith a longitudinalgroove 44 through which passesfa lug projecting from the inner face vof vthe central bore of the pinion 42.

l c 1A spur-gear 45, similar to the spur-gear 46, Within the'cut 19 is slidably mounted on the Aaxle 43 and hasa lug-projecting from its central here yhol'diri'g in 'the' groove 44 so that when theV axle 43 turns both the pinion 42 and thev spur-gear 45 Will turiiwith it.

' The spur-gearV 45 meshes with a toothed pinionld'wi'thin the cut 19, loosely'niourited on `an axle ,47 passing through thehore 27. This toothed p inion meshes with the In this Way, if theslidable axle 32 is slid inwardly, it`s`hea`d135 engages' the teeth 29 and 30 of the cylinder 28 and when the shaft 40 turns the niotioir is conveyed through the stein 38 vtothe slidableaxle 32 and froin this latter, through the head 35,4Which is in meshing with the teeth 29Vand 30, to the cylinder 28 and the'spur-gear 41; from the spur-gear i 41-t0 `the pinion42 which turns together with the axle 43 thus conveyingv the motion'to the V Spur-gear 45 and from this latter through the intermediary toothed pinion 46 to the toothed .f crown 8 ofthe rim 1`thus causing the wheel to roll on the ground.

Y The ratio of the'gears is such that for every revolution o f the shaft 40 there is one revolution of the Wheelperiphery.

When the slidahle axle 32 is slid out; into the. position shown in Fig. V5, its head 35 clutches into the cavity of the cylinder 17 and if the shaft 40 turns the motion is conveyed through the slidahle axle 32 directly to the center of the wheel causing it to turn at the same rate than when moved through the gearing, to wit: making one turn for every one turn of the shaft 40.

l'f'the salida-ble axle 32 is slid only until its v29--30 and the cylinder 17 when the shaft.

40, together with the slidahle axle, 32, turns the motion is conveyed neither to the cylinder 28 norte the cylinder 17 and then the wheel can turn freely.

' Then the head 35 is not: engaging the teeth 29 and 3() the cylinder 28 can turn loosely within the bore 24 and around the axle 32; then if the wheel turns the toothed crown 8 causes the intermediary pinion 47 to turn and convey the motion to the gear 45 which, throughfthe axle 43 causes the pinion 42 to Vturn and convey the motion to the spur-gear 41 securely mounted on the cylinder 28 which now can turn loosely on the axle 32.

Two rollers, 48 and 49.` are loosely mounted on the ends of the axle 47 filling respectively the recesses 22 and 23 of the lower poru tion of the stand 18.

The roller 48 has a portion of reduced diameter 50, which enters into the groove 15;

and trie roller 49 has a portion of reduced dii anietei51 which enters into the groove 16.

53 is a bore inade through the fiange 2 in a point of the middle line of the groove 15; and 54 is a similar bore made through the flange 3 in a point of the middle line of the groove 165 Both the bores 53 and 54 are opposite one another exactly in alinement; and they maybe threaded, so that they can he plugged by threaded plugs.

To set in place the pinion 46 and the rollers 48U and 49 it is necessary to bring the hores and 54 in alinement with the here 27 of the'st-and 18. The roller 48 is set in place first by passing the axle 47 from the outside through the here 53, the centrediore ot said 'roller 48 and the portion of the bore 27 passing through the lower portion of the half 106 of the stand 18; then through the centre bore of the pinion 46 and through the other por? tion of the bore 27 in the half 107 ofthe lower portion of the stand 18; and finally through 'the centre hore of the roller 49.

,Vhen the rollers 48 and 49 are set in place and secured by the axle 47, as shown in Fig. 5x their portions of reduced diameter and 51 held within the grooves 15 and 16 respectively, prevent tlie separation of the stand 18 iironrthe rim 1.

and 56 are two slidable arms mounted within the horizontal niortise 21 and touchingl one another.

' The ariii 55 has a` peg 57 which enters and Sill ltlfi lltl playsn in a iengthened here 58V mede through the anni 56 l and this .lette-1' has e; peg 59 which enters end `plays in lengthened here/t0 mede through the :mn 551 ('l :md rre tiworollere loof on the ends of` the'zxle @dei posses through the `lun-e r 'rtthe artnr 55: ie Q ol red-ricevidiameter trl w the grlorwe 16; zend the roller 62 hes u1 portion of reduced dimleter `(55 which enteis into'tlile groove lo:

to eind (Were two rollers loosely mounted on tlieends of the axle which tightly posses through e bore mirde inthe end of lthre erin 5d The roller 66 has e portion of reduced diameter 69 which enters into` the" groove 16 and :mother portion 70 Whose deineter is larger thanftliet et the portion 69515Jut smaller than that of the portion 66,` intended to ineke wey' for' the teetlrof-the 'crownf 8. l

lr mounted `The roller" 67 has :rportimr ofr reduced diameter llwliic-'h enters into' the groove 15. 'Fo set in "place the rollers 66 end` 67,1tl1e here 730i tlreernr is bmught into eline ment With the bores and 541; the roller 66,- wtlr its portion ($9L Witliiirthe groove 16 is slid until its eentre bore is in zllinernent too with the others and then the axle 68de passed from the outside through the here 54, the 'centre here of tlie roller 66" andthe here 73 of the ern 56. Now the rdller 67 Witlrits portion of reduceddiemeter 7l Within the groove 15` ie slid until its centre lioreis in elinenient' Witl'rthe here 73,- then the" allele 68 iss-passed into `Seidl centrebore ofthe lroller"(57". V'lilo set in pleeetherollers- 61 end 62,-"tl1`e here 72 ofthe ernr 55 ie bil-ought into alfine nient witli the bores and 54; the rollerfl with itsportion` ot reduced diznnete'r 64! with in the reroove l@ slid` until `its centre here is in alimentent with seid' bore lend then the aexle (i3 iS inserted freni the outside througirhi the bore :rnd the centre bore of the" roller 611 sindl then through the here" 72 of the alrmkd; their the roller); witlrits porn tion'orl reduced diemeter Gwviftlii'n the groove 15` is slid untill itscentire bore is in :lili-nement withl the bore 79tlierrtlre endet the axle 63 is passed into said centrehore,

New the bores endet are. plunged in order to prevent the introduction of duet therethrougir` w A i Then the rollers` 6l and 62; und 66" andro? :rre set in piece', the outer ends of the arms 55m-d 56 cannot` sepzrlfatefl-f1'o1n the rini l. Thus if the stand' 18` ishrougrht into the posi-tion shown by dotted: lines Fig. t, the ernisY 55 and elide el ltttleoneitore` d the other while the rstmrd 1S moves sliding; against tlrenrend therollers ttl and 62"; :rnd (56 endV 67 roll :1. little u'irnwrrdly `eigilinet the upper portion of the inner periphery of the 'troni the outer'to the iniier end of the lengthi Ain :non SSSeeu-'rely mtmnted on the exle `of the Wheel ilgtin'st dust. This cover 9'4' is il" desired.

7'? i-s w piece which serves to secure` the stond 118 toi the chassis of ce1" to which the Wheel is applied; l l

T8 end were two" plu'allcl axes journelly encased within two `horizontol hores mede respeetivelythroegflr each one of the halves 106 4107 of the lower portion ot the standl. A toothed sector 80, securely mounted on the outer end" of the Mile 78,41'1esl1es with a` sinr iler' toothed Sector 8l securely" mounted on the outer end of the rifle 'mi lever,` colliprising' a downward More?! mrd en upward erin isfsecmely Inolrnted on the axle To. Thielever SZweenb molte e [ittle sw Tg motion within e recess 8e cutln the tine of tliehelf 10G of the lower portion of the stand 18. serew 185 ser-vee to secure the lexier 824-83 tothennle 7S.` The lower end ot" the 95 arm' 83 is provided Witlre ring 8'6* Whose inner diameterislafrger been that of `the mile e7 iin ordelnot tol touch it;- Tlris ring @6j toehes the innerffeee of tlie` roller 481 es `shown in Fig;` 5l So'tlint Whelrthe upper endet the erm 82 is pushed in,` the ring 8@ of` the enel of the mmrpressee the roller 48 agonist the :Hooge 2"." `le sli'deble har 8T eormeeted to the upper end of the erin 82 serves toeetuzrte the lever 82-SB- ieu 719 "can swing little within o reeeee 10o ont in the miterffece ot' tlieinilf portion of theel-end 1S zinkt 1er' `ided witli t e Ingl 89whose inne" limiti rie larger* then that? et" the axle in olcler" Irot to toluelr it. A sei-'ew 9o' serves lo secure the u enr e8" to the axle 783i` l i New', when* the ernr pushed inhy the ber'87 it @euses the exile 78 to turn o little and the toothed sector dceuefes the toothed eee; tor 8l toturn e littleir the opposite directioii whereby-the eine; 83 eind 88 Wilt Seperate causing' their ring/s Se and to prese respeetively the rollers 48 andl 4-9 tllrustinglr them against the flanges 2 :md Bof' the rim 1 thus 9B el profi-ud in g cyfl'indricel prolongation off the piece' T7 intendedto ztforde bearing tor the end ofthe .shaft 40;

ien, cover intended to in'otect the inside a disc encased within a. circular rabbet 95;.cut

` allaround v the outer edge ofthe iiange y2.

96 represent antiffriction rollers provided Y around :the rabbet 95 to facilitate the vrotaand' the/bar 87. piece 77 closes the entrance ofthe outlet 98.

tion of the flange-2 `around the periphery of the cover 94. This periphery of the-cover 94 andthe rabbet-951arecovered by a ring 97 securedonthe face of the flange 2.a.-

The .cover 94 1s provided with a flanged outlet 984 Iintended to afford a passage for the piecev 77.` the shaft 40, theedge 76, the bar 37 A board 99 secured on the The lmiddleline of the inner face of the board 99 is provided with two pins withl anti-friction'rollers 100 and 101 which enter and play y respectively in two Vgrooves102 and 103cut in the cover 94. vThose rollers 100- 'and 101 are intended to prevent anypossible rotation vot the cover 94. .2 v

Now yit is easy to see thatif thewheel is i stopped by an obstacle on its'way when it is rollingon the ground inthe directionshown in Figjl by a large arrow, the rollers .48 and 49 will climb rollingvupthe smooth :slope fromthefpoint m to Vthe point p on theinn'er periphery of the rim V1 the stand 18 chang- Aing 'from 'its position on the .vertical dialneter ma tothev position shown by dotted lines on the vertical chord 029,'drawn both by the toothed pinion v46 -whichrolls meshing `with i the sloped toothed crown. 8; and by the momentum of .thecan Butasthe point p is above. the crest Cof-'the .obstacle Vand the car have caused.

continuesadvancing the rim 1 will take slow- 'ly an advanced position until the stand 18 will be again on the vertical diameter; thus absorbing theV shock .that the obstacle could If instead of an obstacle the wheel meets a deep hole inthe road', assoon as the rollers 481and 49l pressdown the rim 1 when `it is -balanced on the edge ofthe hole the wheel will fallvrolling into the holewhile the rollers 48 .and .49 will roll down the smooth slope of the inner periphery of the rim 1 until reach- Y ing the lower end of the vertical diameter and then willclimb up the other side of the inner periphery of the rim 1 andzwhen they reach 'the pointofsaid periphery above the opposite kcrest of the hole their pressure on said rim 1 will cause the vwheel to roll out of the holebalancing on'the edgeof the crest of 'said hole, thus absorbing the shock that the the ends of a horizontal axle passing through a bore made in its lower end; each of said rollers having a .portion of reduced diameter adapted to enter respectively into the groove cut in the inner `face of one ol the inwardly extending flanges of the rim to prevent the separation of the lower end of the stand from the rim.

2. In a shock-absorberwheel, a rim provided with two inwardly extending flanges. each having a wide groove cut all around its inner face; and a stand provided with two rollers loosely mounted on the ends of a horizontal axle passing through a bore made in its lower portion; each of said rollers having a portion of reduced diameter adapted to enter respectively into the groove cut in the inner face of one of the inwardly extending flanges ofthe rim; in combination with means to `force both rollers respectively against each of the inwardly extending flanges ol the rim to cause them to act as brakes for checking the rolling of the wheel on the ground.

3. In a shock-absorber wheel; a rim provided with two inwardly extending flanges each having a wide groove cut all around its inner face; and a stand provided with two rollers loosely mounted on either end of a horizontal axle passing through a bore iliade in its lower portion, each of said rollers havn ing a portion of reduced diameter adapted to enter into the groove of one of the inwardly extending flanges of the rim; in combination with two swinging arms encased within two recesses cut in each face of the lower portion of the stand and respectively mounted on one of two parallel axles passing through horizontal bores made in the lower portion of thc-stand perpendicularly to the direction of axle of the rollers; two meshing toothed sectors securely mounted on the outer ends of the parallel axles adapted to convey the motion from one of the parallel axles to the other one; an upper arm securely mounted on one of said parallel axles and connected by its upper end with a bar adapted to press in or pull out the end of said upward arm; and-two rings integral with the lower end of each of the swinging arms adapted to press the above named rollers against the inwardly extending flanges of the rim to cause them `to act as brake for checking the rolling of the wheel. on the ground.

4. In a shock-absorber wheel, a rim provided with two inwardly extending flanges each having a wide groove cut in its inner face; in combination with a stand provided with two rollers loosely mounted on the ends of a horizontal axle passing through va bore made in its lower end, also provided with two slidable arms passing through a horizontal niortise cut in the upper portion of said stand; each slidable arm provided with two rollers loosely mounted on an axle passing through a bore made in its end; each of said rollers havin g a portion of reduced diameter adapted to enter into the groove cut in the inner face of one of the inwardly extending flanges of the riin to vided with two inwardly extending flanges, l

each having a Wide groove cut in its inner face; a stand provided with two rollers looset ly mounted on the ends of an axle passingI through a bore made in its lower end; and two `horizontal slidable arms each provided with two rollers looselymounted on either end of a horizontal aXle passing through a bore made in its end; and provided too with a peg which enters and plays in a lengthened bore made in the other slidable arm, and a inortise out through both slidable arms; in combination with. a slidable lug adapted to enter into said mortises out in the slidable arms to prevent their motion.

6. In a shook absorber wheel, a rim provided with two inwardly extendino flanges, a flat disc integral with one of said ilanges and provided on its center with a protruding eylinder whose inner base has a slightly tapered bore; in combination with a slidable axle provided with a silghtly tapered head adapted to enter into the above-named bore to form a clutch.

7. Is a shock-absorber wheel, a riin provided with two inwardly extending flanges, a circular rabbet eut all around the outer edge of the innermost of said Hanges; in combination with a round covering-disc encased Within said rabbet, antifriction rollers around the rabbet to facilitate the roi tation of the flange on the periphery ot' the covering-disc, and a ring secured on said flange covering the rabbet and the periphery oi? the coveringdisc- 8. In a shock absorber wheel, a rim provided with two inwardly extending flanges, a covering-disc encased within a circular rali-- het out all around the outer edge oi one oi? said flanges and provided with antitriction rollers to facilitate the rotation of the flange around the periphery oi the covering-disc, said disc provided with a flanged outlet; in combination with an arm adaptedto secure the inner mechanism of the wheel to the chassis of a car, passing through said flanged outlet, and bearing a board that closes the entrance of said outlet7 said board provided with two antifriction rollers that play within two arc nate grooves cut in the covering-disc to prevent any possible rotation ot' the disc.

9. In a shock absorber wheel a rim provided with an inner toothed crown; in combination with a vertical train oi gearing whose lower pinion constantly meshes with said toothed crown and is adapted to climb up the slope of the inner face ot the above-named rim to either side out oi. the vertical diameter of the wheel.

l0. In a shock absorber wheel7 a rim provided with an inner toothed crown whose lower portion meshes with a vertical train ol gearing; in combination with a slidable axle adapted to connect said vertical train ot gearing with a turnable shaft.

SERGIO FAUSTINO de CASTRO YZNAGA. 

